GPS recommendations

[ronbo613]

Originally Posted by PaHaSaPa

It is old school, but it works well with my laptop and TOPO USA as a moving map.

I use my eTrex with TOPO as well. There are some other free navigational charts that used to be available on the internet, I don't know if they are still available or not.
TOPO is not super detailed as far as marine topography goes, but it does the job for charting waypoints and routes.